Electric power generation system based on pressurized fuel cell power system with air cooling and recirculation and method for electric power generation by the system

A method for electric power generation, comprising:

• providing a fuel cell stack (FCS);
• providing a duct with its one end connected to an FCS inlet and its other end connected to an FCS outlet;
• providing a fan unit arranged in the duct configured to maintain air circulation in the duct, the fan unit comprising at least one radiator-heat exchanger;
• providing a high pressure of air and hydrogen in an area where the FCS is provided;
• providing the air circulation in the area where the FCS is provided and through the FCS itself;
• partially relieving pressure of air by passing the air through the FCS;
• and
• supplying fresh air to maintain a preset value of air pressure.

An electric power generation system, comprising:

• a fuel cell stack (FCS);
• a duct having a first end connected to an FCS inlet and a second end opposite the first end connected to an FCS outlet;
• a fan unit arranged in the duct configured to maintain air circulation in the duct, the fan unit comprising at least one radiator-heat exchanger;
• an air pressurization device for the duct;
• a hydrogen supply device for the FCS;
• and
• at least one valve arranged on the duct, wherein the duct is configured to controllably allow partial discharge of air pressure in the duct.